.index{
    font-size: 20px;
    font-family: 华光中圆_CNKI, serif;
    margin-top: 300px;
    text-align: center;

}

input{

    border-radius: 15px;
    font-size: 20px;
    width: 300px;
    height: 50px;
}

input:active{
    border-radius: 15px;
}

.in1{
    border: 1px solid darkgrey;
}

.in2{
    border: 1px solid darkgrey;
    margin-top: 25px;
}

button{
    border: 1px solid #d78021;
    color: white;
    background: #d78021;
    border-radius: 10px;
    width: 160px;
    height: 40px;
    margin-top: 25px;
}

.bt1{
    margin-right: 25px;
}

button:hover{
    background: bisque;
}